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PreSonus Rack Mount 6-Channel Headphone Mixing System

SKU: PSHP60MFR: 2777400204

Pristine audio: 6-channel headphone amplifier system.
Powerful headphone amp: 150mW output per channel.
Versatile inputs: Balanced & stereo line options.
Low-noise design: Ensures clean, clear monitoring.
Durable build: Rack-mountable for studio use.

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$440.99

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Tascam MH-8 8-Channel Headphone Amplifier

SKU: TSMH8MFR: MH-8

8-Channel Headphone Amplifier: Pristine sound quality.
Rackmount design: Optimize your audio input options.
Low noise: Ensures clear, professional audio output.
Direct & shared inputs: Versatile connectivity options.
Durable build: Reliable performance for lasting use.

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Crown Audio CDI1000 2-Channel Power Amplifier, 500Watt

SKU: CRWCDI1000MFR: NCDI1000VM

Crown Audio: 500W Power Amplifier, 2-Channel
Low distortion power amp ensures pristine audio
High power output for professional sound systems
Reliable protection circuits ensure amp longevity
Signal-to-noise ratio: 100dB for clear sound

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Crown Audio CDI4000 2-Channel Power Amplifier, 1200Watt

SKU: CRWCDI4000MFR: NCDI4000VM

High Power Output: 1200W per channel at 4 Ohms.
Low THD ensures pristine audio amplification.
Signal-to-Noise Ratio: 100dB for clear sound.
Input Impedance: 20 kOhms for optimal signal.
Damping Factor: >500, enhances speaker control.

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Kramer Electronics 105A 1:5 Stereo Audio Distribution Amplifier

SKU: KR105AMFR: 90-010590

Distribute audio with 1:5 stereo amplifier.
Pristine sound quality; 20kHz audio bandwidth.
Low distortion: 0.03% THD ensures clean audio.
Compact amplifier: 4.7" x 2.95" x 0.98" size.
Adjustable gain: L/R trimmers for precise control.

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Audio Amplifiers to Boost Your Sound

If you’re connecting anything from an instrument or a smartphone to a set of external speakers, you may need an amplifier. While most of us think of “amps” as something to plug a guitar into, there are also many different types of amps for stereo systems, PAs, and more. Check out Adorama’s full selection here from brands like Crown Audio, Behringer, TOA Electronics and more.

What is an amplifier?

When an electrical signal is sent from an instrument, phone, microphone, or phonograph (remember those?), it is weak and nowhere near powerful enough to drive 15” subwoofers. You need a device to “amplify” this signal with some serious wattage, technically called a “power amp.”

Most instrument amps also have a built-in “preamp” in addition to their power amps. Preamps add effects and tonal controls to electrical signals before they are sent to the power amp.

Do I need an amp to play music at home?

If you just want to play tunes from a phone or a laptop, you may not need a specific amp. Many speakers, including Bluetooth speakers, are already “powered,” meaning they’ve got small built-in audio amplifiers. However, if your speakers are unpowered (i.e., they can’t plug into a wall outlet), you’ll need a power amp. Most high-end stereo systems utilize separate power amps.

Home audio systems do not require preamps like instruments do. Still, you may want to invest in a mixer or multi-band graphic equalizer to fine-tune your levels before they hit the power amp. Be aware that if you’re playing music from a computer, it may already have an EQ feature built into its software.

Audio amplifier specifics

We’ve got a huge variety of audio amplifiers at Adorama, from tiny headphone amps to those capable of delivering hundreds of watts. You’ll want your power amp’s wattage to match the power rating of your speakers. If it is too low, you won’t get the most out of your speakers. Even worse, if it’s too high, you could blow them out. If your power amp has selectable resistance levels in ohms (usually 4, 8, or 16), make sure they sync with your speakers as well.

Amps can be powered either by solid-state transistors or by vacuum tubes. As with guitar amps, tube-powered models for stereos are pricier and require more maintenance, but audiophiles love their warm, vintage sound.

No matter what kind of amp you decide is right for you, make sure you’ve got enough cables and adapters to set everything up.